<template>
  <el-form size="small">
    <el-form-item>
      <el-radio v-model="radioValue" :label="1"> 周，允许的通配符[, - * ? / L #] </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="2"> 不指定 </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="3">
        周期从
        <el-select clearable v-model="cycle01">
          <el-option
            v-for="(item, index) of weekList"
            :key="index"
            :label="item.value"
            :value="item.key"
            :disabled="item.key === 7"
            >{{ item.value }}</el-option
          >
        </el-select>
        -
        <el-select clearable v-model="cycle02">
          <el-option
            v-for="(item, index) of weekList"
            :key="index"
            :label="item.value"
            :value="item.key"
            :disabled="item.key <= cycle01"
            >{{ item.value }}</el-option
          >
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="4">
        第
        <el-input-number v-model="average01" :min="1" :max="4" /> 周的
        <el-select clearable v-model="average02">
          <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="5">
        本月最后一个
        <el-select clearable v-model="weekday">
          <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="6">
        指定
        <el-select
          class="multiselect"
          clearable
          v-model="checkboxList"
          placeholder="可多选"
          multiple
          :multiple-limit="6"
        >
          <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>

<script setup>
  const emit = defineEmits(['update']);
  const props = defineProps({
    cron: {
      type: Object,
      default: {
        second: '*',
        min: '*',
        hour: '*',
        day: '*',
        month: '*',
        week: '?',
        year: '',
      },
    },
    check: {
      type: Function,
      default: () => {},
    },
  });
  const radioValue = ref(2);
  const cycle01 = ref(2);
  const cycle02 = ref(3);
  const average01 = ref(1);
  const average02 = ref(2);
  const weekday = ref(2);
  const checkboxList = ref([]);
  const checkCopy = ref([2]);
  const weekList = ref([
    { key: 1, value: '星期日' },
    { key: 2, value: '星期一' },
    { key: 3, value: '星期二' },
    { key: 4, value: '星期三' },
    { key: 5, value: '星期四' },
    { key: 6, value: '星期五' },
    { key: 7, value: '星期六' },
  ]);
  const cycleTotal = computed(() => {
    cycle01.value = props.check(cycle01.value, 1, 6);
    cycle02.value = props.check(cycle02.value, cycle01.value + 1, 7);
    return cycle01.value + '-' + cycle02.value;
  });
  const averageTotal = computed(() => {
    average01.value = props.check(average01.value, 1, 4);
    average02.value = props.check(average02.value, 1, 7);
    return average02.value + '#' + average01.value;
  });
  const weekdayTotal = computed(() => {
    weekday.value = props.check(weekday.value, 1, 7);
    return weekday.value + 'L';
  });
  const checkboxString = computed(() => {
    return checkboxList.value.join(',');
  });
  watch(
    () => props.cron.week,
    (value) => changeRadioValue(value),
  );
  watch([radioValue, cycleTotal, averageTotal, weekdayTotal, checkboxString], () => onRadioChange());
  function changeRadioValue(value) {
    if (value === '*') {
      radioValue.value = 1;
    } else if (value === '?') {
      radioValue.value = 2;
    } else if (value.indexOf('-') > -1) {
      const indexArr = value.split('-');
      cycle01.value = Number(indexArr[0]);
      cycle02.value = Number(indexArr[1]);
      radioValue.value = 3;
    } else if (value.indexOf('#') > -1) {
      const indexArr = value.split('#');
      average01.value = Number(indexArr[1]);
      average02.value = Number(indexArr[0]);
      radioValue.value = 4;
    } else if (value.indexOf('L') > -1) {
      const indexArr = value.split('L');
      weekday.value = Number(indexArr[0]);
      radioValue.value = 5;
    } else {
      checkboxList.value = [...new Set(value.split(',').map((item) => Number(item)))];
      radioValue.value = 6;
    }
  }
  function onRadioChange() {
    if (radioValue.value === 2 && props.cron.day === '?') {
      emit('update', 'day', '*', 'week');
    }
    if (radioValue.value !== 2 && props.cron.day !== '?') {
      emit('update', 'day', '?', 'week');
    }
    switch (radioValue.value) {
      case 1:
        emit('update', 'week', '*', 'week');
        break;
      case 2:
        emit('update', 'week', '?', 'week');
        break;
      case 3:
        emit('update', 'week', cycleTotal.value, 'week');
        break;
      case 4:
        emit('update', 'week', averageTotal.value, 'week');
        break;
      case 5:
        emit('update', 'week', weekdayTotal.value, 'week');
        break;
      case 6:
        if (checkboxList.value.length === 0) {
          checkboxList.value.push(checkCopy.value[0]);
        } else {
          checkCopy.value = checkboxList.value;
        }
        emit('update', 'week', checkboxString.value, 'week');
        break;
    }
  }
</script>

<style lang="scss" scoped>
  .el-input-number--small,
  .el-select,
  .el-select--small {
    margin: 0 0.5rem;
  }
  .el-select,
  .el-select--small {
    width: 8rem;
  }
  .el-select.multiselect,
  .el-select--small.multiselect {
    width: 17.8rem;
  }
</style>
